weight 0.8 is best.
I created this LoRA as requested.
Please read the description.

outfit1
aakyoko, long hair, purple hair, side braid, blunt bangs, hair ribbon, black ribbon, high collar, brown necktie, black jacket, ????????????, long sleeves, black gloves, black skirt, pleated skirt, danganronpa \(series\)

outfit2 (Due to the small dataset, it is not stable.)
aakyoko, long hair, purple hair, ponytail, blunt bangs, black jacket, ????????????, long sleeves, collared shirt, shirt tucked in, black gloves, black suit, skirt, danganronpa \(series\)
I uploaded a sample image of the outfit as a post.
danganronpa \(series\) prompt strengthens the style when used, but you don't have to use it.